Pulsar Timing Arrays and Primordial Black Holes from a Supercooled Phase Transition

Abstract

An explicit realistic model featuring a supercooled phase transition, which allows us to explain the background of gravitational waves recently detected by pulsar timing arrays, is constructed. In this model the phase transition corresponds to radiative symmetry breaking (and mass generation) in a dark sector featuring a dark photon associated with the broken symmetry. The completion of the transition is ensured by a non-minimal coupling between gravity and the order parameter and fast reheating occurs thanks to a preheating phase. Finally, it is also shown that the model leads to primordial black hole production.

8 pages, 4 figures; v2: a plot and more explanations added (published version)

References in corpus (16)

• Multi-messenger Observations of a Binary Neutron Star Merger
• The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
• Search for an isotropic gravitational-wave background with the Parkes Pulsar Timing Array
• Searching for the nano-Hertz stochastic gravitational wave background with the Chinese Pulsar Timing Array Data Release I
• Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
• The NANOGrav 15-year Data Set: Search for Signals from New Physics
• Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
• Sterile Neutrinos as the Origin of Dark and Baryonic Matter
• Primordial black hole production during first-order phase transitions
• NANOGrav Signal from the End of Inflation and the LIGO Mass and Heavier Primordial Black Holes
• First-order Phase Transition interpretation of PTA signal produces solar-mass Black Holes
• Primordial black holes as a probe of strongly first-order electroweak phase transition
• Supercooling in Radiative Symmetry Breaking: Theory Extensions, Gravitational Wave Detection and Primordial Black Holes
• (Higgs) vacuum decay during inflation
• Dimensional Transmutation in Gravity and Cosmology
• Model-Independent Radiative Symmetry Breaking and Gravitational Waves

Cited by in corpus (15)

• Sub-GeV dark matter and nano-Hertz gravitational waves from a classically conformal dark sector
• Primordial Black Holes (as Dark Matter) from the Supercooled Phase Transitions with Radiative Symmetry Breaking
• Transition rate and gravitational wave spectrum from first-order QCD phase transitions
• Thermodynamical uncertainties for primordial black holes from cosmological phase transitions
• Cold Darkogenesis: Dark Matter and Baryon Asymmetry in Light of the PTA Signal
• Significance of soft-scale breaking on primordial black hole production in Coleman-Weinberg type supercooling-phase transition
• Introduction to Thermal Field Theory: From First Principles to Applications
• Supercooled Dark Scalar Phase Transitions explanation of NANOGrav data
• Can asteroid-mass PBHDM be compatible with catalyzed phase transition interpretation of PTA?
• Bubbles kick off primordial black holes to form more binaries
• Reheating after the Supercooled Phase Transitions with Radiative Symmetry Breaking
• Postsphaleron darkogenesis
• Cosmic Overture Echoed in a Stellar Final Act: Implications of Nanohertz Gravitational Waves for Core Collapse Supernova Neutrinos
• Gravitational Waves and Primordial Black Holes produced by Dark Meta Stable Vacuum Decay
• Neutron Portal and Dark Matter-Baryon Coincidence: from UV Completion to Phenomenology